There are a few cons of transitions lenses:
- They don't work in a car because the windshield blocks the UV rays that are necessary to initiate the lenses' darkening mechanism. However, some manufacturers currently have car-friendly lenses in the works. If you own a convertible you can ignore this point.
- Transitions lenses aren't polarized just yet. If you wear prescription eyeglasses and you are light sensitive, the lenses won't reduce the hard glare. On a positive note, this feature should be available in approximately 6 months. Several manufacturers do make polarized non-prescription lenses.
- You may have to take off your glasses for outdoor photos. Since the lenses darken as soon as you walk outside, your eyes will be obscured in pictures. If you're trying to cultivate the rock star look, you can add this to the pro column.
Find out more about the pros and cons of transitions lenses here: http://spectacleshoppe.ca/blogs/news/10474153-pros-vs-cons-of-transition-lenses
